My advice would be to be stern, my father was really stern with us, if he saw us smoke he said he would kick us out. I still smoked but never around the house, and now I quit. If parents are cool with their kids smoking then they will just smoke all the time. I think it is weird when parents and kids have cigarettes together, but that is just me.

I know this is old fashioned but when my buddy's dad caught him smoking at 13, he made him smoke a whole pack. Dude was soooo sick he never (and I mean never) picked up another cigarette again. He can't even smoke a cigar or be around cigarette smoke without feeling a bit queasy. I think some people think this is abuse, but I deem it to be tough love. Better that than them getting addicted to smoking and threatening their health long term.